Blog

Mert Özen's blog posts on software development, backend, frontend, and DevOps.

Series

What Does a Version Number Say? SemVer 2.0.0, Pre-release, Build Metadata and CalVer

Choose a version scheme by whom it makes a promise to: for packages SemVer 2.0.0 promises compatibility, for deployed applications CalVer plus a build number answers "what shipped, and when". We compare pre-release and build metadata ordering in NuGet.Versioning and npm semver with real output, and cover 0.x ranges, kinds of breaking changes, the .NET and Angular support policies and a decision table for Bookstore.

14 Nov 2026 13 min 2

DevOps PART 23

Git Tags and Releases: Marking Versions, git describe and GitHub Releases

We mark releases with git tag: lightweight versus annotated tags, the tag object, semver, why push doesn't send tags, --tags versus --follow-tags, reading git describe output, GitHub Releases, deleting tags and why moving a published tag is dangerous.

6 Nov 2026 8 min 43